Effect of neutron irradiation on soft magnetic properties in amorphous FeCuNbSiB alloy

H. C. Kim, S. C. Yu, C. G. Kim, H. S. Han, W. K. Cho, D. H. Kim

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

The changes in soft magnetic properties on amorphous Fe73.5Cu1Nb3Si13.5B9 alloy after neutron irradiation are studied by complex permeability spectra, magnetoimpedance ions and M - H curve measurements. The total integration fluence of fast neutrons (nf,En>1 MeV) is varied from 1.92×1014nfcm-2 to 4.85×1016nfcm-2. Two different types of relaxation processes in permeability spectra, which were observed in low and high frequency regions, are related to the domain wall motion and the rotational magnetization, respectively. As neutron irradiation fluence increases, the permeability due to domain wall motion decreases but the permeability due to rotational magnetization increases. The anisotropy field estimated from magnetoimpedance profile decreases with neutron irradiation fluence. The measurement of M - H curves shows the improvement of softness after neutron irradiation of 4.85×1016nfcm-2, due to the enhancement of rotational magnetization.

Original languageEnglish
Pages (from-to)7115-7117
Number of pages3
JournalJournal of Applied Physics
Volume87
Issue number9 III
DOIs
Publication statusPublished - 2000 May 1
Event44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States
Duration: 1999 Nov 151999 Nov 18

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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